Effects of Aminoethoxyvinylglycine on Harvest Time and Fruit Quality of ‘Monroe’ Peaches

Year 2011, Volume: 17 Issue: 3, 177 - 189, 04.09.2011

Melike Çetinbaş

https://doi.org/10.1501/Tarimbil_0000001170

Cited By: 1

Abstract

This study was conducted to prolong the harvest date and enhance the fruit quality of ‘Monroe’ peaches. For this
purpose, ReTain containing 15% aminoethoxyvinylglycine (AVG) was applied to the peach fruits. AVG at
concentrations of 0, 100, 150 and 200 mg l
-1 was sprayed on the peaches 7, 21 and 30 days before commercial
harvest. Some fruit quality parameters [fruit weight (g), fruit flesh firmness (N), soluble solids content (SSC, %),
titratable acidity (TA, %), fruit colour (L*, a*, b*), sugar content, delay in harvest, ethylene production (µl kg-1 h-1)
and respiration rate (ml CO2 kg-1 h-1)] were measured for each treatment. Fruit maturity was delayed about 4-6 days
more in AVG-applied fruits than in the control group. A sequential harvest was completed 6-7 days before the
normal harvest time. Application of AVG increased the fruit size and fruit weight of ‘Monroe’ peach. AVGsprayed fruits were firmer than the fruits of control group. AVG applications also decreased ethylene production
and the respiration rate of fruits. As a results, application AVG of 100 or 200 mg l
-1 concentrations 30 days before
commercial harvest for 'Monroe' peach varieties can be recommended. 

Keywords

AVG, Fruit quality, Harvest date, ‘Monroe cv.’, Peach, Ripening

Aminoethoxyvinylglycine’ nin ‘Monroe’ Şeftali Çeşidinde Hasat Zamanı ve Meyve Kalitesi Üzerine Etkileri

Abstract

Bu çalışmanın amacı ‘Monroe’ şeftali çeşidinde hasat tarihini geciktirmek ve meyvelerin kalitesini arttırmaktır. Bu amaçla, % 15 aminoethoxyvinylglycine (AVG) içeren ReTain bitki büyüme düzenleyicisi şeftali meyvelerine uygulanmıştır. AVG’ nin 3 farklı dozu (0, 100, 150, 200 mg L^-1), tahmini hasat zamanından 7, 21 ve 30 gün önce şeftali meyvelerine sprey şeklinde uygulanmıştır. Meyvelerde bazı kalite özellikleri (meyve ağırlığı (g), meyve eti sertliği (N), SCKM (%), titre edilebilir asitlik (%), meyve rengi (L*, a*, b*), şeker miktarı), hasat tarihinin gecikmesi, meyvelerin etilen üretimi (µL kg^-1 h^-1) ve solunum hızları (mL.CO₂ kg^-1 h^-1) her bir uygulama için ayrı ayrı incelenmiştir. AVG uygulamaları ile meyve olgunluğu kontrol grubuna göre 4-6 gün gecikmiş ve kademeli yapılan hasat, normal hasat periyoduna göre 6-7 gün önce tamamlanmıştır. Tüm uygulamalar ‘Monroe’ şeftalisinde meyve büyüklüğünü ve ağırlığını arttırmıştır. AVG uygulanan meyvelerin sertliği kontrol meyvelerine göre daha serttir. AVG uygulamaları ile meyvelerde etilen üretimi ve solunum hızı azalmıştır.

Keywords

AVG, Meyve kalitesi, Hasat tarihi, ‘Monroe’, Şeftali, Olgunluk

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